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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesTechnical Consulting & EngineeringZurichGeologisches Büro Dr. Lorenz Wyssling AG
Geologisches Büro Dr. Lorenz Wyssling AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Geologisches Büro Dr. Lorenz Wyssling AG provides geological and geotechnical consulting for construction projects, groundwater, contaminated sites, building pollutants and soil-related matters. The company also carries out ground investigations, probing and measurements, as well as construction supervision and monitoring.

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Products & services

Industry:Technical Consulting & Engineering
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Geologisches Büro Dr. Lorenz Wyssling AG

Geological consulting
Geological consulting, investigations and assessments for planning and building; clarification of geological questions, risks and solutions throughout Switzerland.
Geological and geotechnical consulting
Geological and geotechnical consulting for construction projects; concept, execution and assessment of ground investigations, with experienced geologists, geotechnicians and civil engineers.
Hydrogeological consulting
Hydrogeological consulting for springs and groundwater; investigations, use, protection, monitoring, and support for authorities, clients and companies.
Contaminated site investigations and remediation
Investigation, monitoring and remediation of contaminated sites; clarification of pollutants, remediation planning, specialist construction management, final reports and emergency response consulting.
Soil science consulting
Soil science consulting, soil investigations and soil protection; soil science construction monitoring, crop rotation areas and handling invasive neophytes.
Probing and geotechnical field tests
Probing, sampling, measurements and geotechnical field tests to explore the subsurface; driven soundings, core drilling, pressure soundings and laboratory samples.
Special maps, 3D models and BIM
Special maps, 3D models and BIM for presenting geological conditions; evaluation of boreholes and measurements for planning and risk assessment.
Ground investigations
Ground investigations for construction projects; clarification of bearing capacity, excavation support, environmental aspects and natural hazards as a basis for planning and approvals.
Construction in groundwater
Hydrogeological investigations, flow calculations, dewatering and expert construction monitoring for civil engineering projects in groundwater.
Infiltration
Assessment of infiltration, hydrogeological investigations, concepts for stormwater drainage, as well as sizing and construction monitoring of infiltration and retention facilities.
Impoundment structure safety
Geological assessments for the safety of dams, dikes, debris/bedload catchers and retention basins; foundation and subsoil assessments.
Natural hazard consulting
Mapping and assessment of natural hazards such as landslides, rockfall and rock avalanches as a basis for protecting roads and buildings.
Trust & reputation

ranQ Trust Score of Geologisches Büro Dr. Lorenz Wyssling AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

Geologisches Büro Dr. Lorenz Wyssling AG scores 61.5 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
x
CriterionValueWeight
  • Review quality: The average rating across all connected sources, smoothed against the industry mean. So 5.0 stars from three reviews do not outrank 4.7 from three hundred.58.324%
  • Review volume: The number of reviews across all sources. The scale is logarithmic: the first reviews count the most, and the maximum is reached at 50 reviews.55.910%
  • Review recency: The age of the most recent review. Two-year-old reviews deliberately sit in the middle, because that is normal for Swiss SMEs. Only after three years without a new voice does the value drop markedly.78.08%
Geologisches Büro Dr. Lorenz Wyssling AG scores 85.5 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
x
CriterionValueWeight
  • Establishment: Years since founding or brand launch, logarithmic. The maximum is reached at 15 years.100.012%
  • Company size: The headcount band, researched by ranQ or stated by the company. It is scored in steps rather than by head count, because the data only provides bands.55.07%
Geologisches Büro Dr. Lorenz Wyssling AG scores 85.0 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
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CriterionValueWeight
  • Verification: Official register entry (commercial register with UID or professional-body record, 55 points), confirmed domain (20 points) and confirmed ranQ profile (up to 25 points, depending on completeness).85.022%
Geologisches Büro Dr. Lorenz Wyssling AG scores 57.1 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
x
CriterionValueWeight
  • Website authority: Ahrefs' Domain Rating measures, on a scale of 0 to 100, how strongly a website is linked from other websites. For Swiss SMEs the range up to 40 is typical; the maximum is reached at 35.57.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Geologisches Büro Dr. Lorenz Wyssling AG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 4.0 out of 5 stars from 8 customer reviews. The data basis is 96%, so the score is backed by part of the criteria. As of October 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

Reviews

Aggregated rating

Aggregated rating
4
of 5

Aggregated from 8 reviews across all connected sources

Sources
GGoogle48
★TrustpilotSoon
PProvenExpertSoon

Further sources are added continuously and factored into the ranQ Rating.

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Location

Albulastrasse 55
8048 Zurich
Opening hours
Mon
08:00 - 17:00
Tue
08:00 - 17:00
Wed
08:00 - 17:00
Thu
08:00 - 17:00
Fri
08:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-106.683.142
Founded
1993 · 33 years
Last commercial register change
August 2, 2023
Employees
1 to 10
Legal form: Graded by liability and disclosure. The weight is kept small: a sole proprietorship is not a dubious company, it is just liable differently.100.06%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.70.03%
    • Full methodology

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